1.0.0[][src]Trait sp_std::clone::Clone

#[lang = "clone"]
pub trait Clone {
#[must_use = "cloning is often expensive and is not expected to have side effects"]
    fn clone(&self) -> Self;

    fn clone_from(&mut self, source: &Self) { ... }
}

A common trait for the ability to explicitly duplicate an object.

Differs from Copy in that Copy is implicit and extremely inexpensive, while Clone is always explicit and may or may not be expensive. In order to enforce these characteristics, Rust does not allow you to reimplement Copy, but you may reimplement Clone and run arbitrary code.

Since Clone is more general than Copy, you can automatically make anything Copy be Clone as well.

Derivable

This trait can be used with #[derive] if all fields are Clone. The derived implementation of clone calls clone on each field.

For a generic struct, #[derive] implements Clone conditionally by adding bound Clone on generic parameters.

// `derive` implements Clone for Reading<T> when T is Clone.
#[derive(Clone)]
struct Reading<T> {
    frequency: T,
}

How can I implement Clone?

Types that are Copy should have a trivial implementation of Clone. More formally: if T: Copy, x: T, and y: &T, then let x = y.clone(); is equivalent to let x = *y;. Manual implementations should be careful to uphold this invariant; however, unsafe code must not rely on it to ensure memory safety.

An example is a generic struct holding a function pointer. In this case, the implementation of Clone cannot be derived, but can be implemented as:

struct Generate<T>(fn() -> T);

impl<T> Copy for Generate<T> {}

impl<T> Clone for Generate<T> {
    fn clone(&self) -> Self {
        *self
    }
}

Additional implementors

In addition to the implementors listed below, the following types also implement Clone:

  • Function item types (i.e., the distinct types defined for each function)
  • Function pointer types (e.g., fn() -> i32)
  • Array types, for all sizes, if the item type also implements Clone (e.g., [i32; 123456])
  • Tuple types, if each component also implements Clone (e.g., (), (i32, bool))
  • Closure types, if they capture no value from the environment or if all such captured values implement Clone themselves. Note that variables captured by shared reference always implement Clone (even if the referent doesn't), while variables captured by mutable reference never implement Clone.

Required methods

#[must_use = "cloning is often expensive and is not expected to have side effects"] fn clone(&self) -> Self

Returns a copy of the value.

Examples

let hello = "Hello"; // &str implements Clone

assert_eq!("Hello", hello.clone());
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Provided methods

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

a.clone_from(&b) is equivalent to a = b.clone() in functionality, but can be overridden to reuse the resources of a to avoid unnecessary allocations.

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Implementations on Foreign Types

impl<'_, K, V> Clone for Keys<'_, K, V>[src]

impl<T> Clone for SendError<T> where
    T: Clone
[src]

impl<'a> Clone for Iter<'a>[src]

impl<T, S> Clone for HashSet<T, S> where
    S: Clone,
    T: Clone
[src]

impl<'_, K, V> Clone for Values<'_, K, V>[src]

impl Clone for Thread[src]

impl Clone for SocketAddrV4[src]

impl Clone for OpenOptions[src]

impl Clone for Ipv6MulticastScope[src]

impl<'_, T, S> Clone for Union<'_, T, S>[src]

impl Clone for Permissions[src]

impl Clone for ThreadId[src]

impl Clone for stat[src]

impl Clone for AddrParseError[src]

impl Clone for Ipv6Addr[src]

impl<'a> Clone for Component<'a>[src]

impl<'_, K> Clone for Iter<'_, K>[src]

impl Clone for RecvError[src]

impl Clone for Shutdown[src]

impl Clone for SocketAddr[src]

impl Clone for IpAddr[src]

impl<'_, T, S> Clone for SymmetricDifference<'_, T, S>[src]

impl<'a> Clone for Prefix<'a>[src]

impl Clone for IntoStringError[src]

impl<'a> Clone for Chain<'a>[src]

impl Clone for FileType[src]

impl<K, V, S> Clone for HashMap<K, V, S> where
    K: Clone,
    S: Clone,
    V: Clone
[src]

impl Clone for OsString[src]

impl Clone for ErrorKind[src]

impl Clone for SocketAddrV6[src]

impl Clone for DefaultHasher[src]

impl Clone for Ipv4Addr[src]

impl Clone for RandomState[src]

impl Clone for Output[src]

impl Clone for Metadata[src]

impl Clone for SystemTimeError[src]

impl Clone for VarError[src]

impl Clone for RecvTimeoutError[src]

impl Clone for ExitStatus[src]

impl<'_, T, S> Clone for Difference<'_, T, S>[src]

impl<T> Clone for Cursor<T> where
    T: Clone
[src]

impl Clone for AccessError[src]

impl Clone for CString[src]

impl Clone for WaitTimeoutResult[src]

impl Clone for NulError[src]

impl<'a> Clone for PrefixComponent<'a>[src]

impl Clone for TryRecvError[src]

impl<T> Clone for TrySendError<T> where
    T: Clone
[src]

impl<'a> Clone for Components<'a>[src]

impl Clone for SeekFrom[src]

impl<'_, K, V> Clone for Iter<'_, K, V>[src]

impl<'_, T, S> Clone for Intersection<'_, T, S>[src]

impl<T> Clone for SyncSender<T>[src]

impl Clone for SystemTime[src]

impl Clone for ExitCode[src]

impl Clone for PathBuf[src]

impl Clone for SocketAddr[src]

impl Clone for StripPrefixError[src]

impl Clone for FromBytesWithNulError[src]

impl Clone for Instant[src]

impl<T> Clone for Sender<T>[src]

impl<'a> Clone for Ancestors<'a>[src]

impl Clone for TraitObject[src]

impl Clone for DecodeUtf16Error[src]

impl Clone for u128[src]

impl Clone for EscapeDebug[src]

impl<T> Clone for Option<T> where
    T: Clone
[src]

impl Clone for CharTryFromError[src]

impl Clone for isize[src]

impl Clone for __m512i[src]

impl<const N: usize, T> Clone for IntoIter<T, N> where
    T: Clone,
    [T; N]: LengthAtMost32
[src]

impl Clone for ![src]

impl<'a, P> Clone for SplitInclusive<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<P> Clone for Pin<P> where
    P: Clone
[src]

impl Clone for i128[src]

impl Clone for __m128[src]

impl Clone for u64[src]

impl Clone for CpuidResult[src]

impl<T> Clone for *const T where
    T: ?Sized
[src]

impl Clone for __m256[src]

impl Clone for i64[src]

impl Clone for f64[src]

impl<'_, T> Clone for &'_ T where
    T: ?Sized
[src]

impl Clone for EscapeUnicode[src]

impl Clone for i8[src]

impl Clone for RawWakerVTable[src]

impl Clone for Duration[src]

impl Clone for UnicodeVersion[src]

impl Clone for u8[src]

impl Clone for __m128d[src]

impl Clone for usize[src]

impl<'f> Clone for VaListImpl<'f>[src]

impl Clone for i16[src]

impl Clone for __m512d[src]

impl Clone for f32[src]

impl<'_, T, P> Clone for SplitInclusive<'_, T, P> where
    P: Clone + FnMut(&T) -> bool
[src]

impl Clone for EscapeDefault[src]

impl Clone for __m256d[src]

impl Clone for u32[src]

impl Clone for u16[src]

impl Clone for EscapeDefault[src]

impl<A> Clone for IntoIter<A> where
    A: Clone
[src]

impl Clone for __m128i[src]

impl Clone for ParseCharError[src]

impl Clone for ToUppercase[src]

impl Clone for __m256i[src]

impl Clone for __m512[src]

impl Clone for Waker[src]

impl<T> Clone for *mut T where
    T: ?Sized
[src]

impl Clone for Ordering[src]

impl Clone for TryFromSliceError[src]

impl Clone for bool[src]

impl Clone for char[src]

impl<'_, A> Clone for Iter<'_, A>[src]

impl Clone for NoneError[src]

impl Clone for i32[src]

impl Clone for __m64[src]

impl Clone for ToLowercase[src]

impl<I> Clone for DecodeUtf16<I> where
    I: Clone + Iterator<Item = u16>, 
[src]

impl<T> Clone for Poll<T> where
    T: Clone
[src]

impl<T> Clone for IntoIter<T> where
    T: Clone
[src]

impl<T> Clone for IntoIterSorted<T> where
    T: Clone
[src]

impl Clone for TryReserveError[src]

impl<T> Clone for IntoIter<T> where
    T: Clone
[src]

impl<T> Clone for Weak<T> where
    T: ?Sized
[src]

fn clone(&self) -> Weak<T>[src]

Makes a clone of the Weak pointer that points to the same allocation.

Examples

use std::sync::{Arc, Weak};

let weak_five = Arc::downgrade(&Arc::new(5));

let _ = Weak::clone(&weak_five);

impl<'_, T> Clone for Iter<'_, T>[src]

impl Clone for FromUtf8Error[src]

impl<T> Clone for Arc<T> where
    T: ?Sized
[src]

fn clone(&self) -> Arc<T>[src]

Makes a clone of the Arc pointer.

This creates another pointer to the same allocation, increasing the strong reference count.

Examples

use std::sync::Arc;

let five = Arc::new(5);

let _ = Arc::clone(&five);

impl Clone for String[src]

impl<T> Clone for LinkedList<T> where
    T: Clone
[src]

impl<'_, T> Clone for Iter<'_, T>[src]

impl<T> Clone for BinaryHeap<T> where
    T: Clone
[src]

impl Clone for pthread_condattr_t

impl Clone for ifaddrs

impl Clone for in_addr

impl Clone for radvisory

impl Clone for mach_header_64

impl Clone for shmid_ds

impl Clone for servent

impl Clone for sockaddr_dl

impl Clone for pthread_rwlock_t

impl Clone for pthread_mutexattr_t

impl Clone for stack_t

impl Clone for kevent64_s

impl Clone for xucred

impl Clone for siginfo_t

impl Clone for mach_timebase_info

impl Clone for flock

impl Clone for ip_mreq

impl Clone for iovec

impl Clone for protoent

impl Clone for passwd

impl Clone for fd_set

impl Clone for timeval

impl Clone for glob_t

impl Clone for load_command

impl Clone for sockaddr_inarp

impl Clone for proc_taskinfo

impl Clone for fsid_t

impl Clone for addrinfo

impl Clone for max_align_t

impl Clone for in6_pktinfo

impl Clone for fstore_t

impl Clone for stat

impl Clone for tms

impl Clone for xsw_usage

impl Clone for in6_addr

impl Clone for if_data

impl Clone for sf_hdtr

impl Clone for timezone

impl Clone for DIR

impl Clone for timeval32

impl Clone for termios

impl Clone for proc_bsdinfo

impl Clone for pthread_rwlockattr_t

impl Clone for sigaction

impl Clone for proc_taskallinfo

impl Clone for sockaddr_storage

impl Clone for pthread_attr_t

impl Clone for hostent

impl Clone for ipv6_mreq

impl Clone for utmpx

impl Clone for pthread_cond_t

impl Clone for kevent

impl Clone for winsize

impl Clone for sockaddr_in6

impl Clone for utimbuf

impl Clone for sockaddr_in

impl Clone for bpf_hdr

impl Clone for group

impl Clone for proc_threadinfo

impl Clone for sockaddr

impl Clone for arphdr

impl Clone for linger

impl Clone for statfs

impl Clone for Dl_info

impl Clone for mach_header

impl Clone for sockaddr_un

impl Clone for utsname

impl Clone for cmsghdr

impl Clone for if_msghdr

impl Clone for dqblk

impl Clone for sigevent

impl Clone for segment_command

impl Clone for sockaddr_ctl

impl Clone for ipc_perm

impl Clone for pthread_mutex_t

impl Clone for sigval

impl Clone for rusage

impl Clone for lconv

impl Clone for segment_command_64

impl Clone for aiocb

impl Clone for itimerval

impl Clone for FILE

impl Clone for rlimit

impl Clone for dirent

impl Clone for fpos_t

impl Clone for sembuf

impl Clone for in_pktinfo

impl Clone for semid_ds

impl Clone for pollfd

impl Clone for statvfs

impl Clone for msghdr

impl Clone for tm

impl Clone for semun

impl Clone for timespec

impl Clone for if_nameindex

impl Clone for _Unwind_Action

impl Clone for _Unwind_Reason_Code

impl Clone for Frame[src]

impl Clone for PrintFmt[src]

impl Clone for TryDemangleError

impl<K, V, S> Clone for HashMap<K, V, S> where
    K: Clone,
    S: Clone,
    V: Clone

impl<'_, K, V> Clone for Keys<'_, K, V>

impl<'_, K> Clone for Iter<'_, K>

impl Clone for CollectionAllocErr

impl<'_, K, V> Clone for Iter<'_, K, V>

impl<'_, T, S> Clone for Intersection<'_, T, S>

impl<'_, T, S> Clone for Union<'_, T, S>

impl<T, S> Clone for HashSet<T, S> where
    S: Clone,
    T: Clone

impl<'_, T, S> Clone for Difference<'_, T, S>

impl<'_, T, S> Clone for SymmetricDifference<'_, T, S>

impl<'_, K, V> Clone for Values<'_, K, V>

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Implementors

impl Clone for sp_std::cmp::Ordering[src]

impl Clone for Infallible[src]

impl Clone for FpCategory[src]

impl Clone for IntErrorKind[src]

impl Clone for SearchStep[src]

impl Clone for AllocErr[src]

impl Clone for CannotReallocInPlace[src]

impl Clone for Global[src]

impl Clone for Layout[src]

impl Clone for LayoutErr[src]

impl Clone for System[src]

impl Clone for TypeId[src]

impl Clone for Error[src]

impl Clone for SipHasher[src]

impl Clone for PhantomPinned[src]

impl Clone for NonZeroI128[src]

impl Clone for NonZeroI16[src]

impl Clone for NonZeroI32[src]

impl Clone for NonZeroI64[src]

impl Clone for NonZeroI8[src]

impl Clone for NonZeroIsize[src]

impl Clone for NonZeroU128[src]

impl Clone for NonZeroU16[src]

impl Clone for NonZeroU32[src]

impl Clone for NonZeroU64[src]

impl Clone for NonZeroU8[src]

impl Clone for NonZeroUsize[src]

impl Clone for ParseFloatError[src]

impl Clone for ParseIntError[src]

impl Clone for TryFromIntError[src]

impl Clone for RangeFull[src]

impl Clone for Box<str>[src]

impl Clone for Box<CStr>[src]

impl Clone for Box<OsStr>[src]

impl Clone for Box<Path>[src]

impl Clone for ParseBoolError[src]

impl Clone for Utf8Error[src]

impl<'_, B> Clone for Cow<'_, B> where
    B: ToOwned + ?Sized
[src]

impl<'_, K, V> Clone for sp_std::collections::btree_map::Iter<'_, K, V>[src]

impl<'_, K, V> Clone for sp_std::collections::btree_map::Keys<'_, K, V>[src]

impl<'_, K, V> Clone for sp_std::collections::btree_map::Range<'_, K, V>[src]

impl<'_, K, V> Clone for sp_std::collections::btree_map::Values<'_, K, V>[src]

impl<'_, T> Clone for sp_std::collections::btree_set::Difference<'_, T>[src]

impl<'_, T> Clone for sp_std::collections::btree_set::Intersection<'_, T>[src]

impl<'_, T> Clone for sp_std::collections::btree_set::Iter<'_, T>[src]

impl<'_, T> Clone for sp_std::collections::btree_set::Range<'_, T>[src]

impl<'_, T> Clone for sp_std::collections::btree_set::SymmetricDifference<'_, T>[src]

impl<'_, T> Clone for sp_std::collections::btree_set::Union<'_, T>[src]

impl<'_, T> Clone for sp_std::collections::vec_deque::Iter<'_, T>[src]

impl<'_, T> Clone for sp_std::result::Iter<'_, T>[src]

impl<'_, T> Clone for Chunks<'_, T>[src]

impl<'_, T> Clone for ChunksExact<'_, T>[src]

impl<'_, T> Clone for sp_std::slice::Iter<'_, T>[src]

impl<'_, T> Clone for RChunks<'_, T>[src]

impl<'_, T> Clone for Windows<'_, T>[src]

impl<'_, T, P> Clone for sp_std::slice::Split<'_, T, P> where
    P: Clone + FnMut(&T) -> bool
[src]

impl<'a> Clone for Arguments<'a>[src]

impl<'a> Clone for CharSearcher<'a>[src]

impl<'a> Clone for Bytes<'a>[src]

impl<'a> Clone for CharIndices<'a>[src]

impl<'a> Clone for Chars<'a>[src]

impl<'a> Clone for EncodeUtf16<'a>[src]

impl<'a> Clone for sp_std::str::EscapeDebug<'a>[src]

impl<'a> Clone for sp_std::str::EscapeDefault<'a>[src]

impl<'a> Clone for sp_std::str::EscapeUnicode<'a>[src]

impl<'a> Clone for Lines<'a>[src]

impl<'a> Clone for LinesAny<'a>[src]

impl<'a> Clone for SplitAsciiWhitespace<'a>[src]

impl<'a> Clone for SplitWhitespace<'a>[src]

impl<'a, 'b> Clone for CharSliceSearcher<'a, 'b>[src]

impl<'a, 'b> Clone for StrSearcher<'a, 'b>[src]

impl<'a, F> Clone for CharPredicateSearcher<'a, F> where
    F: Clone + FnMut(char) -> bool
[src]

impl<'a, P> Clone for MatchIndices<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for Matches<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for RMatchIndices<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for RMatches<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for sp_std::str::RSplit<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for RSplitN<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for RSplitTerminator<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for sp_std::str::Split<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for SplitN<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, P> Clone for SplitTerminator<'a, P> where
    P: Pattern<'a>,
    <P as Pattern<'a>>::Searcher: Clone
[src]

impl<'a, T> Clone for RChunksExact<'a, T>[src]

impl<'a, T, P> Clone for sp_std::slice::RSplit<'a, T, P> where
    P: Clone + FnMut(&T) -> bool,
    T: 'a + Clone
[src]

impl<A> Clone for Repeat<A> where
    A: Clone
[src]

impl<A, B> Clone for sp_std::iter::Chain<A, B> where
    A: Clone,
    B: Clone
[src]

impl<A, B> Clone for Zip<A, B> where
    A: Clone,
    B: Clone
[src]

impl<F> Clone for FromFn<F> where
    F: Clone
[src]

impl<F> Clone for OnceWith<F> where
    F: Clone
[src]

impl<F> Clone for RepeatWith<F> where
    F: Clone
[src]

impl<H> Clone for BuildHasherDefault<H>[src]

impl<I> Clone for Cloned<I> where
    I: Clone
[src]

impl<I> Clone for Copied<I> where
    I: Clone
[src]

impl<I> Clone for Cycle<I> where
    I: Clone
[src]

impl<I> Clone for Enumerate<I> where
    I: Clone
[src]

impl<I> Clone for Fuse<I> where
    I: Clone
[src]

impl<I> Clone for Peekable<I> where
    I: Clone + Iterator,
    <I as Iterator>::Item: Clone
[src]

impl<I> Clone for Skip<I> where
    I: Clone
[src]

impl<I> Clone for StepBy<I> where
    I: Clone
[src]

impl<I> Clone for Take<I> where
    I: Clone
[src]

impl<I, F> Clone for FilterMap<I, F> where
    F: Clone,
    I: Clone
[src]

impl<I, F> Clone for Inspect<I, F> where
    F: Clone,
    I: Clone
[src]

impl<I, F> Clone for Map<I, F> where
    F: Clone,
    I: Clone
[src]

impl<I, P> Clone for Filter<I, P> where
    I: Clone,
    P: Clone
[src]

impl<I, P> Clone for MapWhile<I, P> where
    I: Clone,
    P: Clone
[src]

impl<I, P> Clone for SkipWhile<I, P> where
    I: Clone,
    P: Clone
[src]

impl<I, P> Clone for TakeWhile<I, P> where
    I: Clone,
    P: Clone
[src]

impl<I, St, F> Clone for Scan<I, St, F> where
    F: Clone,
    I: Clone,
    St: Clone
[src]

impl<I, U> Clone for Flatten<I> where
    I: Clone + Iterator,
    U: Clone + Iterator,
    <I as Iterator>::Item: IntoIterator,
    <<I as Iterator>::Item as IntoIterator>::IntoIter == U,
    <<I as Iterator>::Item as IntoIterator>::Item == <U as Iterator>::Item
[src]

impl<I, U, F> Clone for FlatMap<I, U, F> where
    F: Clone,
    I: Clone,
    U: Clone + IntoIterator,
    <U as IntoIterator>::IntoIter: Clone
[src]

impl<Idx> Clone for sp_std::ops::Range<Idx> where
    Idx: Clone
[src]

impl<Idx> Clone for RangeFrom<Idx> where
    Idx: Clone
[src]

impl<Idx> Clone for RangeInclusive<Idx> where
    Idx: Clone
[src]

impl<Idx> Clone for RangeTo<Idx> where
    Idx: Clone
[src]

impl<Idx> Clone for RangeToInclusive<Idx> where
    Idx: Clone
[src]

impl<K, V> Clone for BTreeMap<K, V> where
    K: Clone,
    V: Clone
[src]

impl<T> Clone for Bound<T> where
    T: Clone
[src]

impl<T> Clone for Cell<T> where
    T: Copy
[src]

impl<T> Clone for RefCell<T> where
    T: Clone
[src]

fn clone(&self) -> RefCell<T>[src]

Panics

Panics if the value is currently mutably borrowed.

impl<T> Clone for BTreeSet<T> where
    T: Clone
[src]

impl<T> Clone for sp_std::collections::vec_deque::IntoIter<T> where
    T: Clone
[src]

impl<T> Clone for VecDeque<T> where
    T: Clone
[src]

impl<T> Clone for Empty<T>[src]

impl<T> Clone for Once<T> where
    T: Clone
[src]

impl<T> Clone for Rev<T> where
    T: Clone
[src]

impl<T> Clone for PhantomData<T> where
    T: ?Sized
[src]

impl<T> Clone for Discriminant<T>[src]

impl<T> Clone for ManuallyDrop<T> where
    T: Clone + ?Sized
[src]

impl<T> Clone for Wrapping<T> where
    T: Clone
[src]

impl<T> Clone for Box<[T]> where
    T: Clone
[src]

impl<T> Clone for Box<T> where
    T: Clone
[src]

Important traits for Box<W>
fn clone(&self) -> Box<T>[src]

Returns a new box with a clone() of this box's contents.

Examples

let x = Box::new(5);
let y = x.clone();

// The value is the same
assert_eq!(x, y);

// But they are unique objects
assert_ne!(&*x as *const i32, &*y as *const i32);

fn clone_from(&mut self, source: &Box<T>)[src]

Copies source's contents into self without creating a new allocation.

Examples

let x = Box::new(5);
let mut y = Box::new(10);
let yp: *const i32 = &*y;

y.clone_from(&x);

// The value is the same
assert_eq!(x, y);

// And no allocation occurred
assert_eq!(yp, &*y);

impl<T> Clone for Reverse<T> where
    T: Clone
[src]

impl<T> Clone for Vec<T> where
    T: Clone
[src]

impl<T> Clone for NonNull<T> where
    T: ?Sized
[src]

impl<T> Clone for Rc<T> where
    T: ?Sized
[src]

fn clone(&self) -> Rc<T>[src]

Makes a clone of the Rc pointer.

This creates another pointer to the same allocation, increasing the strong reference count.

Examples

use std::rc::Rc;

let five = Rc::new(5);

let _ = Rc::clone(&five);

impl<T> Clone for sp_std::rc::Weak<T> where
    T: ?Sized
[src]

fn clone(&self) -> Weak<T>[src]

Makes a clone of the Weak pointer that points to the same allocation.

Examples

use std::rc::{Rc, Weak};

let weak_five = Rc::downgrade(&Rc::new(5));

let _ = Weak::clone(&weak_five);

impl<T> Clone for sp_std::result::IntoIter<T> where
    T: Clone
[src]

impl<T> Clone for sp_std::vec::IntoIter<T> where
    T: Clone
[src]

impl<T> Clone for MaybeUninit<T> where
    T: Copy
[src]

impl<T, E> Clone for Result<T, E> where
    E: Clone,
    T: Clone
[src]

impl<T, F> Clone for Successors<T, F> where
    F: Clone,
    T: Clone
[src]

impl<Y, R> Clone for GeneratorState<Y, R> where
    R: Clone,
    Y: Clone
[src]

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